Singapore Airlines Unit Orders 54 Boeing Jets

By

Gaurav Raghuvanshi And

Jon Ostrower

Aug. 4, 2012 3:54 a.m. ET

SINGAPORE—A unit of Singapore Airlines Ltd. on Friday announced an order for 54 Boeing Co. aircraft valued at US$4.9 billion. The deal marks the biggest single purchase in six years for regional unit SilkAir, which operates jets from Boeing rival Airbus.

The commitment includes 23 single-aisle 737-800 planes and 31 737 Max-8s, but the carrier has the option of switching to other variants of the aircraft if needed, Singapore Airlines...